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Alecsey [184]
3 years ago
10

Explain why solar energy is considered an inexhaustible source of energy

Chemistry
2 answers:
anyanavicka [17]3 years ago
5 0

Answer:

Solar power :)

Explanation:

scoray [572]3 years ago
3 0

Answer:

Solar power

Or in some cases, from heat from the sun. ... Solar energy is a renewable free source of energy that is sustainable and totally inexhaustible, unlike fossil fuels that are finite. It is also a non-polluting source of energy and it does not emit any greenhouse gases when producing electricity.

Explanation:

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What is the percent by mass of magnesium sulfate in MgSO4 · 7H2O?
Degger [83]

Answer: 48.83%

Explanation: Mass percent is the ratio of mass of the particular substance  to the total mass of given compound.

{\text {mass percentage}}=\frac{\text{mass of }MgSO_4}{\text {total mass}}\times 100\%

Mass of MgSO_4= 120g

Mass of MgSO_4.7H_2O= 246g

{\text {mass percentage}}=\frac{120g}{246g}\times 100\%=48.83\%

8 0
3 years ago
Calculate the pH of a solution that is 0.147M HCl
Mariana [72]

Answer:

pH = 0.832

Explanation:

pH is given by the formula;

pH = - log [H+]

in this case we are given 0.147 M HCl

HCl is a strong acid and therefore completely dissociates to give out H+ ions,

Therefore; [H+] = [HCl] = 0.147 M

Hence;

pH = - log 0.147 M

    <u> = 0.832 </u>

3 0
3 years ago
a student proposes the following lewis structure for the azide ion. assign a formal charge to each atom in the student's lewis s
AlexFokin [52]

Lewis structures are diagrams that illustrate the bonding between atoms in a molecule as well as any lone pairs of electrons that may exist. They are also known as Lewis dot formulae, Lewis dot structures, electron dot structures, or Lewis electron dot structures (LEDs). Lewis structures are diagrams that illustrate the bonding between atoms in a molecule as well as any lone pairs of electrons that may exist. They are also known as Lewis dot formulae, Lewis dot structures, electron dot structures, or Lewis electron dot structures (LEDs). A Lewis structure can represent any covalently attached molecule as well as coordination compounds. who proposed it in his 1916 article The Atom and the Molecule.

To learn more about lewis's structure the given link:

brainly.com/question/20300458

#SPJ9

7 0
2 years ago
How much energy is required to boil 65 grams of 100°C water<br> And then heat the steam to 150°C?
Artyom0805 [142]

Answer:

13598 J

Explanation:

Q = m × c × ∆T

Where;

Q = amount of energy (J)

m = mass (grams)

c = specific heat capacity

∆T = change in temperature

m = 65g, specific heat capacity of water = 4.184J/g°C, initial temperature= 100°C, final temperature = 150°C

Q = 65 × 4.184 × (150 - 100)

Q = 271.96 × 50

Q = 13598 J

Hence, 13598 J of energy is required to boil 65 grams of 100°C water and then heat the steam to 150°C.

8 0
3 years ago
Atomic Structure -Past Paper Questions
sergejj [24]

Answer:

hi

Explanation:

3 0
3 years ago
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